Upgrading Technology must be done in the respective Technology Buildings:
- Blacksmith : Infantry/Cavalry/Archers ATK
- Armory : Infantry/Cavalry/Archer DEF
- Academy : Mage/Support ATK and DEF
The level of each buildings determine the technology max level. Upgrading Technology requires Iron and time. Each level of Technology improves that particular troop attributes by 0.5%. This bonus applies for all generals.